1. Introduction to Approximation Theory, McGraw-Hill, New York, 1966.
2. Graph Theory: An Algorithmic Approach, Academic, New York, 1975.
3. A note on two problems in connexion with graphs
4. “Lagrangean Relaxation Methods for Combinatorial Optimization,” Research Paper 78–10–06, Department of Decision Sciences, Wharton School, University of Pennsylvania, 1978.
5. Constructive Duality in Integer Programming